Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
clean development » human development, urban development, child development
information flow » information flows, information _
new information » _ information, energy information, chief information
development can » development bank, development band, development case
technology new » technology law, technology e, technologies new

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: technology new information flow _ mobile communication modes clean development can afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology new information flow _ mobile communication modes clean development can afrique.*.